54665135616 has 320 divisors, whose sum is σ = 181026413568. Its totient is φ = 14273445888.

The previous prime is 54665135597. The next prime is 54665135647. The reversal of 54665135616 is 61653156645.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14395030 + ... + 14398826.

Almost surely, 2^54665135616 is an apocalyptic number.

54665135616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54665135616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90513206784).

54665135616 is an abundant number, since it is smaller than the sum of its proper divisors (126361277952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54665135616 is a wasteful number, since it uses less digits than its factorization.

54665135616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941 (or 3925 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 48.

The spelling of 54665135616 in words is "fifty-four billion, six hundred sixty-five million, one hundred thirty-five thousand, six hundred sixteen".